The jailbreak tweak PhotoRes adds aspect ratio and resolution settings to the stock iOS Camera app. Instead of cropping a photo after the fact, PhotoRes makes it possible to select from a list of 14 different aspect ratios. Once chosen in the settings, photos taken on the device will be captured in the selected format.
The range of aspect ratios to choose from ranges from those matching other iOS devices (4:3 for iPad, 3:2 for iPhone 4) to other sizes like 16:9 (HD video) and 1:1 (square). PhotoRes is a convenient way to ensure all of the pictures taken during a photography session match the selected aspect ratio.
Changing the resolution of captures is also possible with PhotoRes. The default resolution is the maximum, so in effect PhotoRes only allows for a reduction in resolution. While the new aspect ratios are interesting, one drawback of the tweak is that the live preview in the Camera viewfinder does not show the appearance of the final photo. The finished product must be viewed in the Camera Roll or using the Photos app.PhotoRes is available from the BigBoss repo on Cydia for free. To start customizing iOS, click here for instructions on jailbreaking iOS 8.0-8.1.2. Those with older firmware can jailbreak with Pangu (iOS 7.1) or evasi0n 7 (iOS 7.0). Find out how to purchase and install Cydia tweaks with this guide.